Move fpdfsdk/src up to fpdfsdk/.

This CL moves the files in fpdfsdk/src/ up one level to fpdfsdk/ and fixes
up the include paths, include guards and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1799773002 .

1 files changed, 415 insertions, 0 deletions

diff --git a/fpdfsdk/fpdfppo.cpp b/fpdfsdk/fpdfppo.cpp
new file mode 100644
index 0000000000..4253cc5fd9
--- /dev/null
+++ b/fpdfsdk/fpdfppo.cpp
@@ -0,0 +1,415 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "public/fpdf_ppo.h"
+
+#include <map>
+#include <memory>
+#include <vector>
+
+#include "core/include/fpdfapi/cpdf_array.h"
+#include "core/include/fpdfapi/cpdf_document.h"
+#include "core/include/fpdfapi/cpdf_name.h"
+#include "core/include/fpdfapi/cpdf_number.h"
+#include "core/include/fpdfapi/cpdf_reference.h"
+#include "core/include/fpdfapi/cpdf_string.h"
+#include "fpdfsdk/include/fsdk_define.h"
+#include "third_party/base/stl_util.h"
+
+class CPDF_PageOrganizer {
+ public:
+  using ObjectNumberMap = std::map<FX_DWORD, FX_DWORD>;
+  CPDF_PageOrganizer();
+  ~CPDF_PageOrganizer();
+
+  FX_BOOL PDFDocInit(CPDF_Document* pDestPDFDoc, CPDF_Document* pSrcPDFDoc);
+  FX_BOOL ExportPage(CPDF_Document* pSrcPDFDoc,
+                     std::vector<FX_WORD>* pPageNums,
+                     CPDF_Document* pDestPDFDoc,
+                     int nIndex);
+  CPDF_Object* PageDictGetInheritableTag(CPDF_Dictionary* pDict,
+                                         CFX_ByteString nSrctag);
+  FX_BOOL UpdateReference(CPDF_Object* pObj,
+                          CPDF_Document* pDoc,
+                          ObjectNumberMap* pObjNumberMap);
+  FX_DWORD GetNewObjId(CPDF_Document* pDoc,
+                       ObjectNumberMap* pObjNumberMap,
+                       CPDF_Reference* pRef);
+};
+
+CPDF_PageOrganizer::CPDF_PageOrganizer() {}
+
+CPDF_PageOrganizer::~CPDF_PageOrganizer() {}
+
+FX_BOOL CPDF_PageOrganizer::PDFDocInit(CPDF_Document* pDestPDFDoc,
+                                       CPDF_Document* pSrcPDFDoc) {
+  if (!pDestPDFDoc || !pSrcPDFDoc)
+    return FALSE;
+
+  CPDF_Dictionary* pNewRoot = pDestPDFDoc->GetRoot();
+  if (!pNewRoot)
+    return FALSE;
+
+  // Set the document information
+  CPDF_Dictionary* DInfoDict = pDestPDFDoc->GetInfo();
+  if (!DInfoDict)
+    return FALSE;
+
+  CFX_ByteString producerstr;
+  producerstr.Format("PDFium");
+  DInfoDict->SetAt("Producer", new CPDF_String(producerstr, FALSE));
+
+  // Set type
+  CFX_ByteString cbRootType = pNewRoot->GetStringBy("Type", "");
+  if (cbRootType.Equal("")) {
+    pNewRoot->SetAt("Type", new CPDF_Name("Catalog"));
+  }
+
+  CPDF_Object* pElement = pNewRoot->GetElement("Pages");
+  CPDF_Dictionary* pNewPages =
+      pElement ? ToDictionary(pElement->GetDirect()) : nullptr;
+  if (!pNewPages) {
+    pNewPages = new CPDF_Dictionary;
+    FX_DWORD NewPagesON = pDestPDFDoc->AddIndirectObject(pNewPages);
+    pNewRoot->SetAt("Pages", new CPDF_Reference(pDestPDFDoc, NewPagesON));
+  }
+
+  CFX_ByteString cbPageType = pNewPages->GetStringBy("Type", "");
+  if (cbPageType.Equal("")) {
+    pNewPages->SetAt("Type", new CPDF_Name("Pages"));
+  }
+
+  CPDF_Array* pKeysArray = pNewPages->GetArrayBy("Kids");
+  if (!pKeysArray) {
+    CPDF_Array* pNewKids = new CPDF_Array;
+    FX_DWORD Kidsobjnum = -1;
+    Kidsobjnum = pDestPDFDoc->AddIndirectObject(pNewKids);
+
+    pNewPages->SetAt("Kids", new CPDF_Reference(pDestPDFDoc, Kidsobjnum));
+    pNewPages->SetAt("Count", new CPDF_Number(0));
+  }
+
+  return TRUE;
+}
+
+FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document* pSrcPDFDoc,
+                                       std::vector<FX_WORD>* pPageNums,
+                                       CPDF_Document* pDestPDFDoc,
+                                       int nIndex) {
+  int curpage = nIndex;
+  std::unique_ptr<ObjectNumberMap> pObjNumberMap(new ObjectNumberMap);
+  int nSize = pdfium::CollectionSize<int>(*pPageNums);
+  for (int i = 0; i < nSize; ++i) {
+    CPDF_Dictionary* pCurPageDict = pDestPDFDoc->CreateNewPage(curpage);
+    CPDF_Dictionary* pSrcPageDict = pSrcPDFDoc->GetPage(pPageNums->at(i) - 1);
+    if (!pSrcPageDict || !pCurPageDict)
+      return FALSE;
+
+    // Clone the page dictionary
+    for (const auto& it : *pSrcPageDict) {
+      const CFX_ByteString& cbSrcKeyStr = it.first;
+      CPDF_Object* pObj = it.second;
+      if (cbSrcKeyStr.Compare(("Type")) && cbSrcKeyStr.Compare(("Parent"))) {
+        if (pCurPageDict->KeyExist(cbSrcKeyStr))
+          pCurPageDict->RemoveAt(cbSrcKeyStr);
+        pCurPageDict->SetAt(cbSrcKeyStr, pObj->Clone());
+      }
+    }
+
+    // inheritable item
+    CPDF_Object* pInheritable = nullptr;
+    // 1 MediaBox  //required
+    if (!pCurPageDict->KeyExist("MediaBox")) {
+      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "MediaBox");
+      if (!pInheritable) {
+        // Search the "CropBox" from source page dictionary,
+        // if not exists,we take the letter size.
+        pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox");
+        if (pInheritable) {
+          pCurPageDict->SetAt("MediaBox", pInheritable->Clone());
+        } else {
+          // Make the default size to be letter size (8.5'x11')
+          CPDF_Array* pArray = new CPDF_Array;
+          pArray->AddNumber(0);
+          pArray->AddNumber(0);
+          pArray->AddNumber(612);
+          pArray->AddNumber(792);
+          pCurPageDict->SetAt("MediaBox", pArray);
+        }
+      } else {
+        pCurPageDict->SetAt("MediaBox", pInheritable->Clone());
+      }
+    }
+    // 2 Resources //required
+    if (!pCurPageDict->KeyExist("Resources")) {
+      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Resources");
+      if (!pInheritable)
+        return FALSE;
+      pCurPageDict->SetAt("Resources", pInheritable->Clone());
+    }
+    // 3 CropBox  //Optional
+    if (!pCurPageDict->KeyExist("CropBox")) {
+      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox");
+      if (pInheritable)
+        pCurPageDict->SetAt("CropBox", pInheritable->Clone());
+    }
+    // 4 Rotate  //Optional
+    if (!pCurPageDict->KeyExist("Rotate")) {
+      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Rotate");
+      if (pInheritable)
+        pCurPageDict->SetAt("Rotate", pInheritable->Clone());
+    }
+
+    // Update the reference
+    FX_DWORD dwOldPageObj = pSrcPageDict->GetObjNum();
+    FX_DWORD dwNewPageObj = pCurPageDict->GetObjNum();
+
+    (*pObjNumberMap)[dwOldPageObj] = dwNewPageObj;
+
+    UpdateReference(pCurPageDict, pDestPDFDoc, pObjNumberMap.get());
+    ++curpage;
+  }
+
+  return TRUE;
+}
+
+CPDF_Object* CPDF_PageOrganizer::PageDictGetInheritableTag(
+    CPDF_Dictionary* pDict,
+    CFX_ByteString nSrctag) {
+  if (!pDict || nSrctag.IsEmpty())
+    return nullptr;
+  if (!pDict->KeyExist("Parent") || !pDict->KeyExist("Type"))
+    return nullptr;
+
+  CPDF_Object* pType = pDict->GetElement("Type")->GetDirect();
+  if (!ToName(pType))
+    return nullptr;
+  if (pType->GetString().Compare("Page"))
+    return nullptr;
+
+  CPDF_Dictionary* pp = ToDictionary(pDict->GetElement("Parent")->GetDirect());
+  if (!pp)
+    return nullptr;
+
+  if (pDict->KeyExist((const char*)nSrctag))
+    return pDict->GetElement((const char*)nSrctag);
+
+  while (pp) {
+    if (pp->KeyExist((const char*)nSrctag))
+      return pp->GetElement((const char*)nSrctag);
+    if (!pp->KeyExist("Parent"))
+      break;
+    pp = ToDictionary(pp->GetElement("Parent")->GetDirect());
+  }
+  return nullptr;
+}
+
+FX_BOOL CPDF_PageOrganizer::UpdateReference(CPDF_Object* pObj,
+                                            CPDF_Document* pDoc,
+                                            ObjectNumberMap* pObjNumberMap) {
+  switch (pObj->GetType()) {
+    case CPDF_Object::REFERENCE: {
+      CPDF_Reference* pReference = pObj->AsReference();
+      FX_DWORD newobjnum = GetNewObjId(pDoc, pObjNumberMap, pReference);
+      if (newobjnum == 0)
+        return FALSE;
+      pReference->SetRef(pDoc, newobjnum);
+      break;
+    }
+    case CPDF_Object::DICTIONARY: {
+      CPDF_Dictionary* pDict = pObj->AsDictionary();
+      auto it = pDict->begin();
+      while (it != pDict->end()) {
+        const CFX_ByteString& key = it->first;
+        CPDF_Object* pNextObj = it->second;
+        ++it;
+        if (!FXSYS_strcmp(key, "Parent") || !FXSYS_strcmp(key, "Prev") ||
+            !FXSYS_strcmp(key, "First")) {
+          continue;
+        }
+        if (pNextObj) {
+          if (!UpdateReference(pNextObj, pDoc, pObjNumberMap))
+            pDict->RemoveAt(key);
+        } else {
+          return FALSE;
+        }
+      }
+      break;
+    }
+    case CPDF_Object::ARRAY: {
+      CPDF_Array* pArray = pObj->AsArray();
+      FX_DWORD count = pArray->GetCount();
+      for (FX_DWORD i = 0; i < count; ++i) {
+        CPDF_Object* pNextObj = pArray->GetElement(i);
+        if (!pNextObj)
+          return FALSE;
+        if (!UpdateReference(pNextObj, pDoc, pObjNumberMap))
+          return FALSE;
+      }
+      break;
+    }
+    case CPDF_Object::STREAM: {
+      CPDF_Stream* pStream = pObj->AsStream();
+      CPDF_Dictionary* pDict = pStream->GetDict();
+      if (pDict) {
+        if (!UpdateReference(pDict, pDoc, pObjNumberMap))
+          return FALSE;
+      } else {
+        return FALSE;
+      }
+      break;
+    }
+    default:
+      break;
+  }
+
+  return TRUE;
+}
+
+FX_DWORD CPDF_PageOrganizer::GetNewObjId(CPDF_Document* pDoc,
+                                         ObjectNumberMap* pObjNumberMap,
+                                         CPDF_Reference* pRef) {
+  if (!pRef)
+    return 0;
+
+  FX_DWORD dwObjnum = pRef->GetRefObjNum();
+  FX_DWORD dwNewObjNum = 0;
+  const auto it = pObjNumberMap->find(dwObjnum);
+  if (it != pObjNumberMap->end())
+    dwNewObjNum = it->second;
+  if (dwNewObjNum)
+    return dwNewObjNum;
+
+  CPDF_Object* pDirect = pRef->GetDirect();
+  if (!pDirect)
+    return 0;
+
+  CPDF_Object* pClone = pDirect->Clone();
+  if (!pClone)
+    return 0;
+
+  if (CPDF_Dictionary* pDictClone = pClone->AsDictionary()) {
+    if (pDictClone->KeyExist("Type")) {
+      CFX_ByteString strType = pDictClone->GetStringBy("Type");
+      if (!FXSYS_stricmp(strType, "Pages")) {
+        pDictClone->Release();
+        return 4;
+      }
+      if (!FXSYS_stricmp(strType, "Page")) {
+        pDictClone->Release();
+        return 0;
+      }
+    }
+  }
+  dwNewObjNum = pDoc->AddIndirectObject(pClone);
+  (*pObjNumberMap)[dwObjnum] = dwNewObjNum;
+  if (!UpdateReference(pClone, pDoc, pObjNumberMap)) {
+    pClone->Release();
+    return 0;
+  }
+  return dwNewObjNum;
+}
+
+FPDF_BOOL ParserPageRangeString(CFX_ByteString rangstring,
+                                std::vector<FX_WORD>* pageArray,
+                                int nCount) {
+  if (rangstring.GetLength() != 0) {
+    rangstring.Remove(' ');
+    int nLength = rangstring.GetLength();
+    CFX_ByteString cbCompareString("0123456789-,");
+    for (int i = 0; i < nLength; ++i) {
+      if (cbCompareString.Find(rangstring[i]) == -1)
+        return FALSE;
+    }
+    CFX_ByteString cbMidRange;
+    int nStringFrom = 0;
+    int nStringTo = 0;
+    while (nStringTo < nLength) {
+      nStringTo = rangstring.Find(',', nStringFrom);
+      if (nStringTo == -1)
+        nStringTo = nLength;
+      cbMidRange = rangstring.Mid(nStringFrom, nStringTo - nStringFrom);
+      int nMid = cbMidRange.Find('-');
+      if (nMid == -1) {
+        long lPageNum = atol(cbMidRange);
+        if (lPageNum <= 0 || lPageNum > nCount)
+          return FALSE;
+        pageArray->push_back((FX_WORD)lPageNum);
+      } else {
+        int nStartPageNum = atol(cbMidRange.Mid(0, nMid));
+        if (nStartPageNum == 0)
+          return FALSE;
+
+        ++nMid;
+        int nEnd = cbMidRange.GetLength() - nMid;
+        if (nEnd == 0)
+          return FALSE;
+
+        int nEndPageNum = atol(cbMidRange.Mid(nMid, nEnd));
+        if (nStartPageNum < 0 || nStartPageNum > nEndPageNum ||
+            nEndPageNum > nCount) {
+          return FALSE;
+        }
+        for (int i = nStartPageNum; i <= nEndPageNum; ++i) {
+          pageArray->push_back(i);
+        }
+      }
+      nStringFrom = nStringTo + 1;
+    }
+  }
+  return TRUE;
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDF_ImportPages(FPDF_DOCUMENT dest_doc,
+                                             FPDF_DOCUMENT src_doc,
+                                             FPDF_BYTESTRING pagerange,
+                                             int index) {
+  CPDF_Document* pDestDoc = CPDFDocumentFromFPDFDocument(dest_doc);
+  if (!dest_doc)
+    return FALSE;
+
+  CPDF_Document* pSrcDoc = CPDFDocumentFromFPDFDocument(src_doc);
+  if (!pSrcDoc)
+    return FALSE;
+
+  std::vector<FX_WORD> pageArray;
+  int nCount = pSrcDoc->GetPageCount();
+  if (pagerange) {
+    if (!ParserPageRangeString(pagerange, &pageArray, nCount))
+      return FALSE;
+  } else {
+    for (int i = 1; i <= nCount; ++i) {
+      pageArray.push_back(i);
+    }
+  }
+
+  CPDF_PageOrganizer pageOrg;
+  pageOrg.PDFDocInit(pDestDoc, pSrcDoc);
+  return pageOrg.ExportPage(pSrcDoc, &pageArray, pDestDoc, index);
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDF_CopyViewerPreferences(FPDF_DOCUMENT dest_doc,
+                                                       FPDF_DOCUMENT src_doc) {
+  CPDF_Document* pDstDoc = CPDFDocumentFromFPDFDocument(dest_doc);
+  if (!pDstDoc)
+    return FALSE;
+
+  CPDF_Document* pSrcDoc = CPDFDocumentFromFPDFDocument(src_doc);
+  if (!pSrcDoc)
+    return FALSE;
+
+  CPDF_Dictionary* pSrcDict = pSrcDoc->GetRoot();
+  pSrcDict = pSrcDict->GetDictBy("ViewerPreferences");
+  if (!pSrcDict)
+    return FALSE;
+
+  CPDF_Dictionary* pDstDict = pDstDoc->GetRoot();
+  if (!pDstDict)
+    return FALSE;
+
+  pDstDict->SetAt("ViewerPreferences", pSrcDict->Clone(TRUE));
+  return TRUE;
+}